Add StylePath and use it to store 'd' in ComputedStyle

third_party/WebKit/Source/core/css/CSSPathValue.cpp

Index: third_party/WebKit/Source/core/css/CSSPathValue.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSPathValue.cpp b/third_party/WebKit/Source/core/css/CSSPathValue.cpp
index d4557518c6e35bbec2d559aa6e265e5ab3471a57..f725d430de82061109b0da6000ed1000a95e6bfe 100644
--- a/third_party/WebKit/Source/core/css/CSSPathValue.cpp
+++ b/third_party/WebKit/Source/core/css/CSSPathValue.cpp
@@ -4,23 +4,33 @@
 
 #include "core/css/CSSPathValue.h"
 
+#include "core/style/StylePath.h"
 #include "core/svg/SVGPathUtilities.h"
 
 namespace blink {
 
+PassRefPtrWillBeRawPtr<CSSPathValue> CSSPathValue::create(PassRefPtr<SVGPathByteStream> pathByteStream, StylePath* cachedPath)
+{
+    return adoptRefWillBeNoop(new CSSPathValue(pathByteStream, cachedPath));
+}
+
 PassRefPtrWillBeRawPtr<CSSPathValue> CSSPathValue::create(const String& pathString)
 {
-    OwnPtr<SVGPathByteStream> byteStream = SVGPathByteStream::create();
+    RefPtr<SVGPathByteStream> byteStream = SVGPathByteStream::create();
     buildByteStreamFromString(pathString, *byteStream);
     return CSSPathValue::create(byteStream.release());
 }
 
-CSSPathValue::CSSPathValue(PassOwnPtr<SVGPathByteStream> pathByteStream)
+CSSPathValue::CSSPathValue(PassRefPtr<SVGPathByteStream> pathByteStream, StylePath* cachedPath)
     : CSSValue(PathClass)
     , m_pathByteStream(pathByteStream)
+    , m_cachedPath(cachedPath)
 {
     ASSERT(m_pathByteStream);
-    buildPathFromByteStream(*m_pathByteStream, m_path);
+}
+
+CSSPathValue::~CSSPathValue()
+{
 }
 
 CSSPathValue* CSSPathValue::emptyPathValue()
@@ -29,6 +39,13 @@ CSSPathValue* CSSPathValue::emptyPathValue()
     return empty.get();
 }
 
+StylePath* CSSPathValue::cachedPath()
+{
+    if (!m_cachedPath)
+        m_cachedPath = StylePath::create(m_pathByteStream);
+    return m_cachedPath.get();
+}
+
 String CSSPathValue::customCSSText() const
 {
     return "path('" + pathString() + "')";